2012213321 has 4 divisors (see below), whose sum is σ = 2024558352. Its totient is φ = 1999868292.

The previous prime is 2012213311. The next prime is 2012213323. The reversal of 2012213321 is 1233122102.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2012213321 - 2⁶ = 2012213257 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2012213321.

It is not an unprimeable number, because it can be changed into a prime (2012213323) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6172271 + ... + 6172596.

It is an arithmetic number, because the mean of its divisors is an integer number (506139588).

Almost surely, 2^2012213321 is an apocalyptic number.

It is an amenable number.

2012213321 is a deficient number, since it is larger than the sum of its proper divisors (12345031).

2012213321 is a wasteful number, since it uses less digits than its factorization.

2012213321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12345030.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 2012213321 is about 44857.7007993054. The cubic root of 2012213321 is about 1262.4804837816.

Adding to 2012213321 its reverse (1233122102), we get a palindrome (3245335423).

The spelling of 2012213321 in words is "two billion, twelve million, two hundred thirteen thousand, three hundred twenty-one".